伊通盆地西北缘反转构造特征分析

Analysis on characteristics of inversion structures in the northwestern margin of Yitong Basin

伊通盆地西北缘构造特征复杂,勘探难度大,为了更清楚地认识地质特点,进而对西北缘构造特征进行研究。研究表明,该反转构造发生于古近纪末、新近纪初;应力方向为近东西向;并且在该构造作用下使得盆地西北缘发育了一条基本平行于盆地北边界的断褶带。该结论的提出以期为下一步的勘探提供借鉴。

This article provides an overview of geological characteristics of northwest margin in Yitong Basin in northwestern margin,which features complex structures and difficult to be explored. Studies show that this inversion structure grew at the later Paleogene and early Neogene;the force direction of the structure is from east to west;and a fault fold zone parallel to the northern boundary of the Basin develops by it. This conclusion is helpful for further exploration.